Pasture is extremely difficult to sample because animals will selectively consume plants

If high nitrates are expected cautious management is recommended

Corn stubble can effectively be sampled by collecting 15-20 random samples from the field, chop to at least 1 inch lengths, mix thoroughly, and remove about 0.5 lbs for testing

* For fresh forages it is recommended to deliver samples directly to the lab, or freeze samples for 24 hours prior to shipping and ship in an insulated container. Fresh forage in a sealed bag will begin to ferment which reduces the Nitrate level of the sample.